The "gut barrier" refers to the protective lining that serves as a barrier in our digestive tract, preventing harmful substances from entering our bloodstream while allowing nutrients to be absorbed. Full definition
Studies show glutathione may play an important role in gut barrier function and the prevention of intestinal inflammation. (drknews.com)
Loss of gut barrier integrity, initiated by bacteria or by treatment with a chemical, can result in bacterial invasion and inflammation. (sciencedaily.com)
Re the gut, I would expect our diet to work well at restoring gut barrier integrity, but much depends on the composition of your gut flora. (perfecthealthdiet.com)